Early Edinger rebuild

[LurkingCAT]

It was so joyful starting the resurrection of my old A stamp (late Edinger) https://www.rc10talk.com/viewtopic.php?f=35&t=48230, so when I got into the build, I simply had to switch to a parallel build including a early Edinger I bought last year. Probably should have finished my own late Edinger before starting on this one, but got too tempting to do a parallel build

Never thought I would get my hands on an early Edinger until I stumbled across a driven but relatively untouched box stock car here in Norway in 2022.

Seems like this car was abandoned in the eighties like i did with my own late Edinger.

Here is an initial look before the rebuild. Servos in place and it came with the AE Edinger stock motor.

Goodyear front wheels (Goodyear facing inwards), blank rear wheels, thin clear lexan gear cover, rear capturing spring retainers, one glass fiber battery strap, equal bell cranks, slender steering blocks etc.

[bluewormx]

Gotta love the early Edinger, it symbolises the beginning.
It would be really cool to see all the fine details like drive gear pivot and shock internals.

[LurkingCAT]

Yes indeed. Going through a car like this is a bit like an archaeologist on excavation.

Was excited about the gear box and shock internals.

Shock internals was as expected with slot pistons and aluminum spacers. What I didn't see at first glance were the spring retainers on the front shocks. Everything on this car seems box stock, but demounting and cleaning off the dirt revealed brass retainers up front. A bit odd that the only option part mounted seems to be front spring retainers.

They are nicely machined. Anybody recognizing these?

[RC10resto]

No, have never seen those. Interesting

[juicedcoupe]

Dynotech makes some now, similar to the newer ones. I wondered if they had been a popular addition at some point.

[LurkingCAT]

The chances are good that the brass spring retainers dates from the eighties. I've never seen anything like these and if you haven’t seen them, they might be homemade.

But as you see after the cleaning the finish is pretty good.

As expected, the gearbox revealed E clip drive gear pivot - put it to the left of the thread fixed version. Not much wear to the ball raced idler gear or drive gears.

Cleaning white plastic and gold anodized parts in warm soap water (some use of solvents where needed). Gear train bearings etc cleaned with solvents.
Plastic came out satisfactory and I won't do any bleaching.

[LurkingCAT]

Some tiny steps forward - gear box and shock assembly.
Gear box built as per early specs. All of the shocks had the aluminium spacer and slotted pistons.
Also lucky to find the captive rear spring retainers cleaned up very nicely.
Decided to swap the brass spring retainers in the front with original parts.

[LurkingCAT]

Turning out to be a real slow cooked dish. Nice to not rush through the build and enjoy the adventure - after all there is no hurry with this one.

[jcwrks]

*Edited since the entire post didn't submit and caused confusion. Oops

[LurkingCAT]

You should swap the right side pinion around, tap it onto the diff tube, fit the large hole washer over pinion flange, and use a teflon diff tube bushing.

rc10rhgear.JPG

I believe you have misinterpreted the image
I have built quite a few of these and always the way shown. The right hand pinion (the left in the picture you've marked red) must have the flange to the left (the flanged side entering the diff tube) in order match the cone on the tube. Also the inside diameter of the large hole washer is too small to go over the pinion flange.

On the side without the flange the inside diameter of the pinion matches the outside diameter of the teflon bushing. The teflon bushing is seated inside the large hole washer and the remaining part of the bushing pushed into the pinion like shown in the picture below.

[jcwrks]

My attempt at dry humor failed. I left off the wink emoji and part of my post didn't submit.

[Frankentruck]

My attempt at dry humor failed. I left off the wink emoji and part of my post didn't submit.

I also didn't understand your previous post. It seemed like a good way to mess up a diff tube by unnecessary removal and reinstallation of an already correctly installed gear.

[jcwrks]

My attempt at dry humor failed. I left off the wink emoji and part of my post didn't submit.

I also didn't understand your previous post. It seemed like a good way to mess up a diff tube by unnecessary removal and reinstallation of an already correctly installed gear.

Removing a rh diff pinion gear from an AE diff tube, which has a steel tube, won't mess the tube up at all. Occasionally you need to remove the pinion if it becomes crooked by use and/or was pressed on incorrectly.

[Frankentruck]

My concern is messing up the crimp that holds the tube to the diff ring carrier when trying to get a pinion off.

[juicedcoupe]

Not on the tube side, but I have had a glue the shaft and pinion together.

Both pieces were aftermarket (Trackmaster and Thorp) but I think that the problem started with neglect by the previous owner.